Quantum Filter for Nonlocal Polarization Properties of Photonic Qubits
Abstract
We present an optical filter that transmits photon pairs only if they share the same horizontal or vertical polarization, without decreasing the quantum coherence between these two possibilities. Various applications for entanglement manipulations and multiphoton qubits are discussed.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 2002
- DOI:
- 10.1103/PhysRevLett.88.147901
- arXiv:
- arXiv:quant-ph/0111001
- Bibcode:
- 2002PhRvL..88n7901H
- Keywords:
-
- Quantum Physics
- E-Print:
- 7 pages, including one figure, short discussion of error sources added